
56
88
A-78710E
Edit
Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Descri
tion
Date
FANUC Series 16i –MB, 18i –MB5
Tool Radius Compensation For 5-Axis
machining Specifications
Dec.01.2001
02 Mar.22.2002
T.Mochia All revision
H.Kouzai
Sheet
T.Mochida H.Kouzai
03 Mar.28.2003
MTanaka All revision H.kouzai
04 Aug.05.2003
T.Horie Intersection offset, G-code unification add. H.kouzai
05 Jun.02.2004 Intersection offset(tool rotation type, Mixed type)
(2) Creation of the basic vector of coordinate system C2 for applying
two-dimensional cutter compensation
Let the tool direction vector in the state of the N2 end point
be
T
V
.
−
=
−
A
BA
BA
T
R
RR
RR
NaROTV
sin
))(sin(cos
))(cos(cos
)(
1
02
α
2
e
is defined as follows. Note that
T
Ve
2
.
−
=
−
0
cos
sin
)(
1
022 B
B
R
R
NaROTe
α
where
A
R
: reference angle of the tool axis (RA) (parameter No.19622) and
B
R
: reference angle of the tool axis (RB) (parameter No.19623)
The unit vector
3
e
satisfying
T
Ve
3
and
23
ee
may be given by the following
outer product calculation:
23
eVe
T
(3) Definition of coordinate system C2
Coordinate system C2 {O;
2
e
,
3
e
,
1
e
} is an Cartesian coordinate system having
O = (0,0,0) as its origin and the following unit vectors as its basic vectors:
2
e
3
e
T
Ve
1
Coordinate system C2
Z
X
Coordinate system C1
P’
R’
e
2
e
1
=V
T
D
Q’
e
3
e
2
P''
''
R''
'
e
3